The hydroacoustic signature of ships' propellers can be estimated experimentally through measurements of cavitation-induced pressure fluctuations and the corresponding noise distributions at model scale. These measurements need to be performed in a cavitation tunnel under the propellers operating conditions and are quite sensitive and challenging to perform with sufficient accuracy. In comparison, the numerical approach can be used to present a good general idea of the predicted results and doesn’t require so many resources to perform. It is also not influenced by signal conditioning or disturbance sources present in a real environment. So we trade scope and precision of the results for time and cost reduction. In this paper we will describe both experimental and numerical methods currently in use and present the advantages and limitations of the practical application of both. We will also outline the concept of their precision development individually and their ultimate evolution into a coupled approach towards final noise estimation for the ship's propeller.
Authors
Additional information
- Category
- Publikacja w czasopiśmie
- Type
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Language
- angielski
- Publication year
- 2017
